Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando Jack Watson foi nomeado?
 ###Tabelas: CREATE TABLE average_scores_of_all_couples (average_scores_of_all_couples_id AUTO_INCREMENT PRIMARY KEY, Rank by average INT, Place VARCHAR, Couple VARCHAR, Perfect 40s INT, Total INT, Number of dances INT, Season INT, Average VARCHAR) CREATE TABLE boxscore_data (boxscore_data_id AUTO_INCREMENT PRIMARY KEY, Date(s) VARCHAR, City, state VARCHAR, Ticket price(s) VARCHAR, Ticket sold / available VARCHAR, Ticket grossing VARCHAR) CREATE TABLE current_judges (current_judges_id AUTO_INCREMENT PRIMARY KEY, Position VARCHAR, Name VARCHAR, Stationed In VARCHAR, Appointed INT, Nominated by VARCHAR, Position Prior to Appointment VARCHAR) CREATE TABLE top_10_across_all_platforms (top_10_across_all_platforms_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Actor VARCHAR, Character VARCHAR, Soap Opera VARCHAR, Years VARCHAR, Duration VARCHAR) CREATE TABLE semi_finals (semi_finals_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Home team VARCHAR, Score VARCHAR, Away team VARCHAR, Venue VARCHAR, Crowd INT, Box Score VARCHAR, Report VARCHAR)  
SELECT Appointed FROM current_judges WHERE Name = Jack Watson